North American International Auto Show held in Detroit

The Audi RS7 is introduced at the 2013 North American International Auto Show in Detroit, Michigan, on January 14, 2013. (AFP/Getty Images)

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The Mercedes-Benz E-400 Hybrid is introduced at the 2013 North American International Auto Show in Detroit, Michigan, January 14, 2013. (AFP/Getty Images)

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Johan De Nysschen (R) president of Infiniti Motor Corp. and Shiro Nakamura chief creative offcer, introduce the 2014 Q50 to replace their best-selling G sedan at the North American International Auto Show on January 14, 2013 in Detroit, Michigan. The auto show will be open to the public January 19-27. (Getty Images)

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Toyota introduces the Corolla Furia Concept car at the North American International Auto Show on January 14, 2013 in Detroit, Michigan. The auto show will be open to the public January 19-27. (Getty Images)

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The new Lincoln MKC crossover concept vehicle makes its world debut at the media preview of the 2013 North American International Auto Show at the Cobo Center January 14, 2013 in Detroit, Michigan. Approximately 6,000 members of the media from 68 countries are attending the show this year. The 2013 NAIAS opens to the public January 19th. (Getty Images)

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Cars are displayed at the Ford exhibit at the 2013 North American International Auto Show media preview at the Cobo Center January 14, 2013 in Detroit, Michigan. Approximately 6,000 members of the media from 68 countries are attending the show this year. The 2013 NAIAS opens to the public January 19th. (Getty Images)

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The Honda Urban SUV concept car is introduced at the 2013 North American International Auto Show in Detroit, Michigan, on January 14, 2013. (AFP/Getty Images)

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The Bentley Continental GT Speed Convertible is introduced at the 2013 North American International Auto Show in Detroit, Michigan, on January 14, 2013. (AFP/Getty Images)

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The BMW M6 Gran Coupe is introduced at the 2013 North American International Auto Show in Detroit, Michigan, on January 14, 2013. (AFP/Getty Images)

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The BMW Z4 sDrive is introduced at the 2013 North American International Auto Show in Detroit, Michigan, January 14, 2013. (AFP/Getty Images)